Bailey Horn

Horn attended West High School in West, Texas, and played college baseball at McLennan Community College and Auburn University. He was a part of back to back 3A State Championship teams (2015 & 2016) in high school. Horn also competed in the 2017 NJCAA World Series and 2019 College World Series while at MCC and Auburn respectively. ^[2]

Horn was drafted by the Chicago White Sox in the fifth round, with the 142nd overall selection, of the 2020 Major League Baseball draft.^[3] Horn made his professional debut in 2021 with the Single-A Kannapolis Cannon Ballers, and also appeared for the High-A Winston-Salem Dash.^[4]

On July 29, 2021, the White Sox traded him to the Chicago Cubs for Ryan Tepera.^[5] He finished the year with the High-A South Bend Cubs, compiling a 4.98 ERA with 24 strikeouts across 7 games (4 starts).^[6] Horn split the 2022 campaign between South Bend and the Double-A Tennessee Smokies. In 33 appearances out of the bullpen, he registered a cumulative 2.79 ERA with 74 strikeouts and 4 saves over 51+2⁄3 innings of work.^[7]

Horn split the 2023 season between the Double-A Tennessee Smokies and Triple-A Iowa Cubs. In 45 relief outings between the two affiliates, he accumulated a 7–3 record and 4.21 ERA with 78 strikeouts across 62 innings.^[8] On November 14, 2023, the Cubs added Horn to their 40-man roster to protect him from the Rule 5 draft.^[9]

On February 27, 2024, Horn was traded back to the White Sox in exchange for Matthew Thompson.^[10] He was optioned to the Triple-A Charlotte Knights to begin the 2024 season.^[11] After struggling to an 11.32 ERA in 9 games for Triple-A Charlotte, Horn was designated for assignment on April 26.^[12]

On April 30, 2024, Horn was traded to the Boston Red Sox in exchange for cash considerations. He was subsequently optioned to the Triple-A Worcester Red Sox.^[13] Horn was promoted to the major leagues for the first time on June 28,^[14] and made his debut the following day, against the San Diego Padres.^[15] With the major-league Red Sox, Horn appeared in 18 games, all in relief, posting a 6.50 ERA while striking out 13 batters in 18 innings and recording one win and one loss.^[16]

On November 22, 2024, Horn was claimed off waivers by the Detroit Tigers.^[17] He was designated for assignment following the signing of Gleyber Torres on December 27.^[18] On January 9, 2025, Horn was claimed off waivers by the St. Louis Cardinals.^[19] He was optioned to the Triple-A Memphis Redbirds to begin the season.^[20] However, Horn was designated for assignment following the signing of Phil Maton on March 13.^[21] He was traded back to the Tigers that same day in exchange for cash considerations, and optioned to the Triple-A Toledo Mud Hens.^[22] For the Tigers, Horn had a 1.59 ERA with 10 appearances in the 2025 season.

Horn was placed on the 10-day injured list on to start the season while he recovered from arthroscopic elbow surgery.^[23] He was moved to the 60-day injured list on April 22, 2026, after he had to be pulled from his rehab assignment a week earlier due to a setback in his recovery.^[24]

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